Assuming a solid shaft and using the shear stress formula:
Define the required pumping rate or "intensity" of agitation (e.g., mild, medium, or violent). 2. Impeller & Speed Selection agitator design calculation xls
) is a dimensionless constant specific to the impeller type; for example, a Rushton turbine typically has an Npcap N sub p around 5.0, while a marine propeller is roughly 0.3–0.5. Assuming a solid shaft and using the shear
The minimum shaft diameter is calculated based on the maximum shear stress theory (or ASME code for shaft design): agitator design calculation xls